How to Auto Shutdown your Ubuntu system from terminal

It is possible to  schedule a time for your Ubuntu PC to go off. For this you can type a simple command at the terminal window

sudo shutdown –h +m

(Replace the m with your desired minutes for the computer to go off)

You will be prompted to enter the password. Type in the password and press enter

If you want to cancel the scheduled shutdown, the command is: sudo shutdown –c

Terminal will ask you for the sudo password. type the password and press enter

(Try the sudo shutdown –c command in a new terminal for proper result)